A research instrument atop the Mauna Loa volcano in Hawaii could be used to provide earlier warnings to astronauts when dangerous high-energy particles are blasted out of the Sun's corona.

On Nov. 12, 1966, NCAR researchers used an innovative new camera to snap the finest picture of the solar corona ever taken up to the time.

Military space weather forecasters helped avoid a potential nuclear conflict between the U.S. and Russia when they alerted leaders that a solar storm may have been responsible for jamming radio and radar communications.

A new study sheds light on the mystery of Comet ISON, suggesting that the comet broke up before reaching the Sun.

Pushing a solar model to the highest resolution ever attempted brings order back to the Sun's magnetic tangle.